Heating & Vibrating Massage Relieve Shoulder Pain. Built-in heating pad can warm your shoulder promote circulation and help recovery from injury. Provides ultra-comfy hot therapy for the shoulder joint, help to relieve soreness caused by frozen shoulder, torn rotator cuff, dislocation, sprain, strain and bursitis Ideal Christmas Day or holiday gift for your family and friends, suitable for chest size: 29inches ~ 39inches, arm size: 9 inches ~ 16 inches. It provides sufficient heat and relief for those suffered from chronic shoulder pain, fatigue, stiff and tendinitis Functions and features: Heat massage two-in-one shoulder pad-you can enjoy 3 functions at the same time or separately Built-in 5000mAh large capacity battery 3-level heating and 3-level vibration settings, the highest temperature is 75 degrees Heating and massaging make the knees no longer fatigue